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Finding the Fourth Proportional to 3,114, 4,671 and 1,167.12

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Solution

The fourth proportional to 3,114, 4,671 and 1,167.12 is: 1,750.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114 : 4,671 = 1,167.12 : x
  2. Step 2: Convert to fraction form
    3,114/4,671 = 1,167.12/x
  3. Step 3: Cross multiply
    3,114x = 4,671 × 1,167.12
  4. Step 4: Simplify right side
    3,114x = 5,451,617.52
  5. Step 5: Solve for x
    x = 5,451,617.52/3,114
  6. Step 6: Final answer
    x = 1,750.68

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.